1 New in release 0.98 (June 6, 2007)
3 * ARM and MIPS32 code generators are now open-source.
4 * PowerPC64 code generator was added.
5 * Sun's phoneme CLDC-1.1 classes can now be used as Java core
7 * Exception throwing code was completely rewritten, this saves JIT
8 code size from 20% up to 50%.
9 * Lock-record code was rewritten and a memory leak was fixed.
10 * Threads code has been reworked and improved.
11 * Exception code has been reworked and improved.
12 * Implemented Class/Method/Field getSignature.
13 * A lot of stuff has been reworked, fixed or improved in the whole
15 * Fixed memory leak in threads code.
18 New in release 0.97 (October 30, 2006)
20 * New instruction format.
21 * New intermediate representation with unified variables.
22 * Local subroutine elimination.
23 * Fixed the interpreter - it runs eclipse now.
24 * New stack-based verifier (used for -Xint).
25 * Boehm GC updated to version 6.8.
26 * Added enable/disable system assertion support (-esa/-dsa).
27 * Initial javax.management support.
28 * Initial sun.misc.Unsafe (JSR166) support.
29 * Added failed class as message to ClassCastException's.
30 * AttachCurrentThread, DetachCurrentThread, and
31 AttachCurrentThreadAsDaemon implemented.
32 * libjvm is now opened via dlopen (removed -rpath stuff).
33 * Data segment now reuses values (if possible).
35 * Fixed AbstractMethodError bug.
36 * Fixed builtin_isanysubclass (BeanShell bug).
37 * Fixed a memory leak in dump memory.
38 * Fixed a bug with DUP2_X1 and DUP2_X2.
39 * Safe decoding of invalid UTF-8 sequences in NewStringUTF.
40 * Fixed line numbers in exceptions thrown through the JIT.
41 * Proper null-check for MONITOREXIT.
42 * Many low-level jasmin tests added.
45 New in release 0.96 (May 29, 2006)
47 * New tasuki lock implementation resolves deadlock problems on
48 multi-processor machines.
49 * Handle Miranda-methods properly.
50 * try-catch line number problem with jikes fixed.
51 * Added support for libjvm.so (including invocation API).
52 * Stripped down object code size of code generators.
53 * Increased default maximum heap size to 128MB and decreased default
55 * Cleaned up internal handling of Unicode strings.
56 * Fixed getResources of bootstrap classloader.
57 * Correct handling of boot packages (provided glibj.zip contains a
59 * Exception handling fixes (don't allocate memory on Java heap).
60 * x86_64's code generator generates not RISC-style code.
61 * Green threads implementation removed.
62 * Semaphore implementation for Darwin (taken from Boehm).
63 * sem_wait interrupted by signal fixed.
64 * Overflow in Object.wait() (partially) fixed (caused busy waiting
66 * Store JNI global refs in native hashtable instead of Java
67 hashtable (bootstrap problem).
68 * Argument passing fixed for powerpc-linux (asm_vm_call_method).
71 New in release 0.95 (February 13, 2006)
73 * Dead-lock bugfix. This should fix the random dead-locks seen in
74 Eclipse or other applications.
75 * Search for suitable jar program during configure, can be specified
76 via JAR environment variable
77 * --enable-zlib bugfix
78 * i386 bugfix: Set FPU to 64-bit on VM startup (fixes Debian bug
80 * powerpc bugfix: (M_COPY): Handle longs and doubles properly.
81 * Fixed instructions copying stackslots (like DUP_X1).
82 * Fixed classcache-related problem with java.lang.reflect.Proxy.
83 * Throw correct exception when trying to load a directory
84 as a classfile (from a .zip file).
85 * Fixed incorrect method resolution when calling instance methods
86 through JNI (fixes CACAO bugs #17 and #18).
89 New in release 0.94 (January 22, 2006)
91 * support compilation of Interpreter and JIT compiler into one binary (not
93 * bootstrap ZIP code rewrite (VM startup time improvement)
94 * fixed JNI DirectByteBuffer functions, jogl works now
95 * removed most third-party files from the repository, we link to the
97 * removed VM interface Java files which were identical to the GNU
98 Classpath upstream version
99 * added defineClassWithTransformers to java.lang.VMClassLoader, now we are
100 able to build against the generics branch
101 * Java compiler which should be used during compilation can be specified
102 via JAVAC environment variable
106 New in release 0.93 (November 23, 2005)
109 * JIT codegenerators for Arm and MIPS (32-bit, -o32), currently
111 * integration of a vmgen-based interpreter (--enable-intrp)
112 * removal of GNU classpath, CACAO now uses upstream releases or CVS
115 * JNI local references implemented
116 * reflection fixes and access checks (mauve tests)
117 * linear scan register allocator (-lsra)
118 * lazy resolving fixes
119 * fixed instanceof instruction
120 * updated to Boehm GC 6.6
123 New in release 0.92 "Tomclipse" (July 14, 2005)
125 * runtime lazy-loading with code patching
126 * dynamic library loading on every platform we support (using
128 * new ICMDs (PUTSTATICCONST, PUTFIELDCONST)
129 * some ICMDs inlined (IDIV/IREM, LDIV/LREM, AASTORE, ARRAYCHECKCAST)
130 * register allocator uses unused argument registers
131 * stacktraces on MIPS, PowerPC and x86_64
132 * integration of GNU classpath's system class loader
133 * internal class loading code more Java VM Spec compliant
134 (classcache, loading constraints, ...)
135 * virtual function table bugfix (abstract class implements not all
137 * initial support for thread dump on SIGQUIT (<ctrl>-\) on most
143 New in release 0.91 (December 23, 2004)
145 * bug fixed in MULTIANEWARRAY
146 * field access related bug fixes
147 * native function call bug fixes
151 New in relaese 0.90 (December 8, 2004)
153 * More architectures supported: At the moment, CACAO is able to run on
154 Alpha, MIPS (64-bit), x86, x86-64 and PowerPC (32-bit) architectures.
155 * Native thread support
158 * Preliminary AWT support
159 * Boehm garbage collector
160 * Reentrant JIT compiler
161 * Lots of bug fixes and conformance enhancements
162 * Lots of bugs introduced and not fixed
165 * Version 0.40 (released)
166 =========================
168 ** Boehm garbage collector supported
169 ------------------------------------
171 The --enable-gc2 options was replaced by --with-gc. Choose boehm for the
172 Boehm garbage collector. Also see README.boehm.
177 Now runs on some SGI systems, which are based on the mips architecture.
179 ** multiple bug fixes
180 ---------------------
182 Even more java programs work as expected!
185 * Version 0.35 (experimental)
186 =============================
188 ** autoconf, automake support
189 -----------------------------
191 Finally moved the entire distribution to autoconf/automake. This should fix
192 some of our problems with supporting different compilers. Thread support and
193 the use of the new garbage collector can be enabled/disabled from using
196 --enable-threads [default]
199 --enable-gc2 [default]
202 ** new garbage collector
203 ------------------------
205 Included the new garbage collector as default garbage collector.
207 * Version 0.30 (released)
208 =========================
210 Added unlimited stack for GC and main thread.
211 Some optimzations for instructions which operate on constants.
213 * Version 0.20 (released)
214 =========================
216 Hardware null pointer check added, fixed severe errors in GC/Threads, type
217 check and IEEE arithmetic.
219 * Version 0.20beta (can't remember)
220 =========================
222 There is a completely new JIT compiler which is about 7 times faster and
223 produces better code.
224 Multithreading is now supported.
225 A lot of bugs have been fixed.
227 * Version 0.10 (ancient history)
230 The initial version included the old JIT and support for lang, util and io.